In her book, Skloot wrote about the unauthorized harvesting of cancer cells from Lacks’ body and how that led to medical breakthroughs. Lacks was born in Roanoke, Va., and later lived in Baltimore as an adult, and the cells were “cultured” from her body by Hopkins doctors for medical research.

HBO recently announced a time and date for the movie’s debut, April 22 at 8 p.m. It also issued an “official tease” preview. One scene in the tease is shot in the lobby of the historic Billings Building at Hopkins, where a large statue of Jesus Christ greets visitors. Most of the film was shot in Atlanta.

Winfrey, a former television news anchor and talk show host in Baltimore, is one of the executive producers of the HBO film. She also has a key on-screen role as the daughter Henrietta never got to know. The story is told through her eyes.

Here’s the teaser video:

This story has been corrected to reflect that Henrietta Lacks was born in Roanoke, Va., not Baltimore.